Strategic Systems International

Senior Software Engineer (.NET Core, React)

Strategic Systems International  •  Lahore, PK (Onsite)  •  15 days ago
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Job Description

PURPOSE

We are looking for a Full-Stack Software Engineer (.NET Core + React.js) with strong experience in modern web application development, scalable backend services, cloud-based architecture, and frontend engineering. The ideal candidate will have hands-on expertise in .NET 8, ASP.NET Core, React 18, Next.js, Azure Cloud Services, and modern API-driven development while contributing to high-performance, secure, and scalable enterprise applications.

QUALIFICATIONS, SKILLS, AND EXPERIENCE

  • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.

  • 2 to 5 years of experience in Full-Stack Development using .NET Core and React.js.

  • Strong expertise in C# and TypeScript development.

  • Hands-on experience with React 18 and Next.js (App Router).

  • Strong understanding of TailwindCSS, responsive UI development, and modern frontend architecture.

  • Experience with Redux Toolkit and react-redux for state management.

  • Expertise in ASP.NET Core Web API and RESTful API development.

  • Strong experience with .NET 8, ASP.NET Core, and Entity Framework Core.

  • Hands-on experience with Azure SQL Database and database-driven applications.

  • Strong understanding of CQRS, MediatR, Dependency Injection, and scalable application architecture.

  • Experience integrating authentication and authorization using NextAuth, Azure AD B2C, OIDC, and JWT Bearer authentication.

  • Familiarity with Axios, fetch APIs, and Next.js Route Handlers.

  • Experience working with Azure Cloud services including Azure Blob Storage, Azure Service Bus, Azure Key Vault, Azure Redis Cache, and Azure Application Insights.

  • Exposure to AI/LLM integrations including OpenAI GPT-4o-mini, Google Gemini, Perplexity Sonar-Pro, and Azure ML.

KEY RESPONSIBILITIES

  • Full-Stack Development: Develop scalable and high-performance full-stack applications using .NET 8, ASP.NET Core, React.js, and Next.js.
  • Frontend Engineering: Build responsive, modern, and user-friendly interfaces using React 18, Next.js App Router, TailwindCSS, clsx, and tailwind-merge.
  • Backend Development: Design and develop secure backend services, RESTful APIs, and ASP.NET Core Web APIs using C# and .NET 8.
  • API Integration: Implement API communication and networking using Axios, fetch APIs, and Next.js Route Handlers.
  • Authentication & Security: Integrate secure authentication and authorization using NextAuth, Azure AD B2C, OIDC, JWT Bearer authentication, and @azure/msal-node.
  • Database Management: Develop and optimize database-driven applications using Entity Framework Core 9 and Azure SQL Database.
  • Architecture & Scalability: Implement scalable application architecture using CQRS, MediatR, Dependency Injection, and scoped services.
  • Cloud & Azure Services: Utilize Azure Blob Storage, Azure Service Bus, Azure Key Vault, Azure Redis Cache, and Azure Application Insights for cloud-native application development.
  • AI & LLM Integration: Work with OpenAI GPT-4o-mini, Google Gemini 2.0 Flash, Perplexity Sonar-Pro, and Azure ML for AI-powered features and integrations.
  • Performance Optimization: Monitor, troubleshoot, debug, and optimize application performance, scalability, and reliability across frontend and backend systems.
  • Code Quality & Maintenance: Ensure clean coding practices, documentation, testing, maintainability, and continuous improvement of applications.

A Culture of Belonging:
At our core, we value diversity and inclusion. As an equal opportunity employer, we are dedicated to creating a workplace where every voice is heard, every person is respected, and everyone has the opportunity to succeed.

Strategic Systems International

About Strategic Systems International

Strategic Systems International (SSI) is Chicago-headquartered Advanced Analytics and Software Engineering firm that builds data-driven applications for Tech Companies and Enterprises. We are a team of data scientists, software engineers, architects, MBAs, business analysts and infrastructure management professionals.

Founded in 1991 in an incubator in Evanston, IL by alumni of University of Chicago and Northwestern University, we now have offices in Europe, Asia and Latin America. Our clients include VC-backed fast-growing Tech Startups to Fortune 100 companies. Our key domains and sectors include FinTech/ Financial Services, HealthTech, Big Data & Analytics, Machine Learning, and Industry of Things (IoT).

Partner With Us: sales@ssidecisions.com

Industry
IT & Software
Company Size
201-500 employees
Headquarters
Chicago, IL
Year Founded
1991
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